CN113838481B - 用于验证磁带的非暂时性计算机可读介质、方法和装置 - Google Patents
用于验证磁带的非暂时性计算机可读介质、方法和装置 Download PDFInfo
- Publication number
- CN113838481B CN113838481B CN202111140123.1A CN202111140123A CN113838481B CN 113838481 B CN113838481 B CN 113838481B CN 202111140123 A CN202111140123 A CN 202111140123A CN 113838481 B CN113838481 B CN 113838481B
- Authority
- CN
- China
- Prior art keywords
- saturation
- current
- tape
- magnetic tape
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10305—Improvement or modification of read or write signals signal quality assessment
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1879—Direct read-after-write methods
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
- G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111140123.1A CN113838481B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/665,340 | 2017-07-31 | ||
US15/665,340 US9953671B1 (en) | 2017-07-31 | 2017-07-31 | Saturation-based verification of magnetic tape storage |
CN202111140123.1A CN113838481B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
PCT/US2018/044459 WO2019027938A1 (en) | 2017-07-31 | 2018-07-31 | MAGNETIC TAPE STORAGE SATURATION-BASED VERIFICATION |
CN201880048377.0A CN110945585B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880048377.0A Division CN110945585B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113838481A CN113838481A (zh) | 2021-12-24 |
CN113838481B true CN113838481B (zh) | 2023-06-27 |
Family
ID=61951782
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111140123.1A Active CN113838481B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
CN201880048377.0A Active CN110945585B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880048377.0A Active CN110945585B (zh) | 2017-07-31 | 2018-07-31 | 用于验证磁带的非暂时性计算机可读介质、方法和装置 |
Country Status (5)
Country | Link |
---|---|
US (2) | US9953671B1 (ja) |
EP (1) | EP3662472B1 (ja) |
JP (1) | JP7129468B2 (ja) |
CN (2) | CN113838481B (ja) |
WO (1) | WO2019027938A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9953671B1 (en) * | 2017-07-31 | 2018-04-24 | Oracle International Corporation | Saturation-based verification of magnetic tape storage |
US11238890B2 (en) * | 2019-03-27 | 2022-02-01 | Sony Corporation | Servo signal verifying device for magnetic recording tape, servo writer, method of producing magnetic recording tape, and servo signal reading head |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0344802A (ja) * | 1989-07-12 | 1991-02-26 | Fuji Electric Co Ltd | 磁気ヘッドの適正書き込み電流決定方法 |
JP2003006826A (ja) * | 2001-06-27 | 2003-01-10 | Fuji Photo Film Co Ltd | サーボ信号検査装置 |
US6525892B1 (en) * | 2000-01-28 | 2003-02-25 | Western Digital Technologies, Inc. | Method of calibrating a write current-setting for servo writing a disk drive |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0654542B2 (ja) * | 1987-08-28 | 1994-07-20 | 富士通株式会社 | 光学記憶装置 |
US5473550A (en) * | 1994-03-21 | 1995-12-05 | Seagate Technology, Inc. | Fast calibration using microsteps |
US5689384A (en) * | 1994-06-30 | 1997-11-18 | International Business Machines Corporation | Timing based servo system for magnetic tape systems |
US5793558A (en) * | 1996-06-05 | 1998-08-11 | Western Digital Corporation | Method for seek time optimization employing voice-coil motor current saturation level to define an adaptive deceleration profile |
US6181505B1 (en) * | 1998-06-26 | 2001-01-30 | Seagate Technology Llc | Synchronous digital demodulator with integrated read and servo channels |
US6674605B1 (en) * | 1999-04-21 | 2004-01-06 | Seagate Technology Llc | PQ enhanced dual stage servo controller |
JP2003503808A (ja) * | 1999-06-24 | 2003-01-28 | シーゲイト テクノロジー エルエルシー | アクチュエータ飽和中におけるサーボ安定性維持の方法および装置 |
JP2002367101A (ja) * | 2001-06-07 | 2002-12-20 | Fuji Photo Film Co Ltd | サーボ信号検査装置 |
US6865050B2 (en) * | 2001-06-07 | 2005-03-08 | Fuji Photo Film Co., Ltd. | Servo signal recording device and servo signal verifying device using edge detection |
US7072133B1 (en) * | 2001-10-15 | 2006-07-04 | Imation Corp. | Servo mark verify head |
JP3966512B2 (ja) * | 2003-04-22 | 2007-08-29 | 富士フイルム株式会社 | サーボライトヘッドアセンブリ及びサーボライタ |
US7486471B2 (en) * | 2006-03-03 | 2009-02-03 | Seagate Technology Llc | Methods and apparatus for constraining transducer velocity based on disk rotational latency while seeking in a disk drive |
US7679852B2 (en) * | 2007-06-28 | 2010-03-16 | Seagate Technology Llc | Adjustment of read/write clock edge timing |
US8027121B2 (en) * | 2009-11-04 | 2011-09-27 | International Business Machines Corporation | Positioning coarse servo actuator of tape servo system to allow fine servo actuator to follow tape shift excursions |
US8526132B2 (en) * | 2010-02-03 | 2013-09-03 | HGST Netherlands, B.V. | Servo patterning compatible with planarization of patterned magnetic disks |
US8059362B2 (en) * | 2010-03-02 | 2011-11-15 | International Business Machines Corporation | Positioning a coarse actuator of compound actuator tape servo system at midpoint of maximum peaks of lateral tape movement |
GB2525222A (en) * | 2014-04-16 | 2015-10-21 | Ibm | Method and apparatus for operating a tape storage device |
US9953671B1 (en) * | 2017-07-31 | 2018-04-24 | Oracle International Corporation | Saturation-based verification of magnetic tape storage |
-
2017
- 2017-07-31 US US15/665,340 patent/US9953671B1/en active Active
-
2018
- 2018-02-12 US US15/893,989 patent/US10217480B2/en active Active
- 2018-07-31 JP JP2020505229A patent/JP7129468B2/ja active Active
- 2018-07-31 WO PCT/US2018/044459 patent/WO2019027938A1/en unknown
- 2018-07-31 EP EP18756055.2A patent/EP3662472B1/en active Active
- 2018-07-31 CN CN202111140123.1A patent/CN113838481B/zh active Active
- 2018-07-31 CN CN201880048377.0A patent/CN110945585B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0344802A (ja) * | 1989-07-12 | 1991-02-26 | Fuji Electric Co Ltd | 磁気ヘッドの適正書き込み電流決定方法 |
US6525892B1 (en) * | 2000-01-28 | 2003-02-25 | Western Digital Technologies, Inc. | Method of calibrating a write current-setting for servo writing a disk drive |
JP2003006826A (ja) * | 2001-06-27 | 2003-01-10 | Fuji Photo Film Co Ltd | サーボ信号検査装置 |
Non-Patent Citations (1)
Title |
---|
磁头、磁盘及读/写通道的测试器;StanleyH.Dinsmore等;《计算机工程》;19820620(第03期);全文 * |
Also Published As
Publication number | Publication date |
---|---|
JP7129468B2 (ja) | 2022-09-01 |
EP3662472B1 (en) | 2023-05-24 |
WO2019027938A1 (en) | 2019-02-07 |
US10217480B2 (en) | 2019-02-26 |
JP2020529697A (ja) | 2020-10-08 |
CN113838481A (zh) | 2021-12-24 |
CN110945585B (zh) | 2021-10-15 |
US9953671B1 (en) | 2018-04-24 |
US20190035423A1 (en) | 2019-01-31 |
EP3662472A1 (en) | 2020-06-10 |
CN110945585A (zh) | 2020-03-31 |
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